Refrigerating apparatus



March 10, .1931. a R PRUGH 1,795,886

' REFRIGERATING APPARATUS I Filed June 30, 1927 AQCL? v I S Q ywmww wattozuu Patented Mar. 19, 1931 UNITEU srA'r -zs whim PATENT o t-"ricesA'munL n. Pnnen, or, DAYTON, 10, Assienon, BY mnsnn' ASSIGNMENTS, 'rormeinA'rnn oonronArron, 1A CORPORATIONOF DELAWARE nnrnIonnA'rrnoAPPALRAIUS Application filed June 30,

The present invention relates to refrigerators, and particularly torefrigerators in which the mechanical apparatus and the compartmentcooled thereby are contained- 5 within one cabinet.

In refrigerators of the above t pe it is desirable to cool the condenserof die refrigerating apparatus by air, and since refrigerators are oftenplaced against the walls of a room, it is desirable to expel the airfrom the same side of the cabinet in which the door opening for thestorage compartment is disposed. One of the objects of the presentinvention is to prevent the relatively l5 warm air which isexpelled fromthe machine compartment from entering the storage compartment when thedoor of said latter compartment is, open.

It is another object of the invention to di- 2 root the air leaving thecondenser or machine compartment away from the air entering the machinecompartment so that the relatively warm air will not be recirculatedabout the condenser.

I Further objects and advantages of the present invention will beapparent from the following description, to the accompanying drawing,wherein a preferred form of the present invention is 30 clearly shown.

In the drawing Fig. 1 is a front view of my improved refrigeratorshowing the door of the storage compartment open, and I F 1g. 2 is a topplan view ofthe refrigerator showing the machine compartment thereof insection, the section being taken on line 2-2 of Fig. 1.

Referring tothe drawing, indicates a refrigerator which is substantiallythe same as that shown in the copending application of Harry :8. Hull,Serial No. 147,862, filed Nov. 12, 1926. Cabinet 21 includes a storagecompartment 22 and a machine compertinent 23 which are separated by ahorizontal wall 24. The cabinetmay be rectangular in horizontal crosssection, thus having four vertical outer walls, the front wall 26 ofwhich is provided with a door 5 opening 27 and is closed by a door 28.This reference being had vers 32 direct 1927. Serial No. 202,619.

front wall is also provided with two sets of openings or passages 29 and30 which are formed by slitting vertically the sheet metal front walland forming louvers 31' and 32.

The condenser 33 is disposed within the machine compartment 23 andcomprises a plurality of turns of copper tubing vertically spaced fromone another and for thepurpose of illustrating the resent invention, thecondenser is herein s own as forming a part of a refrigerating.apparatus of the compressor-condenser-expander type in which acompressor 35 draws refrigerant from an evaporator 34, contained withinthe storage compartment 22, and forces the compressed refrigerant intothe condenser 33. The compressor 35 is driven by an electrical motor 36through a belt '37 connected with the motor pulley 38 and flywheel 39 ofthe compressor. A fan 40 is carried on the armature shaft of the motorand is disposed Within the turns of the condenser 33.

Rotation of this fan causes air to .be drawninwardly through thepassages 29 and about the condenser 33 and expelled through the passages30. A portion of the air entering the machine compartment will flowtransversely across the coiland about the compressor and motor andtransversely across the opposite end of the condenser and in theopposite direction while another portion of this air will flowlongitudinally over the turns of the condenser The passages 29preferably extend in a vertical direction and the louvers 32 arearranged to direct the air sideways away from the air inlet passages 29and away from the door opening27. In this manner relatively warm airleaving the machine compartment will not enter the storagecompartment 22when the door 28 is open while the refrigerating apparatus is operating.Likewise, the louthe air away from the passages 29 so that therelatively warm air will not recirculate within the machine compartmentand the louvers 31 are arranged. so that relatively cool air will betaken into the passages 29 from a direction opposite the direction ofthe flow of expelled air.

While the form of embodiment of the ini tangular in vention as hereindisclosed, constitutes a preferred form, it is to be understood thatother forms might be adopted, all coming within the scope of the claimswhich follow.

What is claimed is as follows:

1. A refrigerator comprising a cabinet recs ta'ngular in cross sectionhaving a storage compartment, a machine compartment and four Verticalouter walls, one of said Walls of said cabinet having a door opening forthe storage compartment and an opening in the machine compartment, anair cooled condenser within the machine compartment, means forcirculating air outwardly from the anachine compartment through saidlatter opening, and means for directing said air sideways away from thedoor opening.

2. A refrigerator comprising a cabinet reccross section having a storagecompartment, a machine compartment and four vertical outerwalls, one ofsaid walls of said cabinet having a door opening for the storagecompartment and a plurality of louvered openings for conducting airoutwardly from the machine compartment, an air cooled condenser withinthe machine compartment, means for circulating air outwardly from themachine compartment through said louvered openings, the louvers being;arranged for di rooting air sideways away from the door opening.

3. A refrigerator comprising a cabinet rectangular in cross sectionhaving a storage compartment, a machine compartment and four verticalouter walls, one of said walls of said cabinet having a door opening forthe storage compartment and a plurality of low vered openings forconducting air outwardly from and inwardly into the nachine compartment,an air cooled condenser within the machine compartment, means forcirculating air outwardly from and inwardly into the machine compartmentthrough said louvered openings, the louversv being arranged fordirecting air sideways away from the door opening, the louvered openingsconducting the air outwardly being directed in a direction opposite fromthat of the louvered openings conducting the air inwardly.

In testimony whereof Ihereto afix my signature.

SAMUEL R, PRUGH.

